SLADE

SLADE is a modern, open-source, cross-platform level editor (except versions 3.0.0, 3.0.1 and 3.0.2) and WAD editor (since version 3.0.0) for Windows, Mac OS X, and Linux created and maintained by Simon Judd (with code contributions by Gez to version 3).

Early development
The very first alpha version of SLADE (v0.1) was released on November 21, 2004.
 * SLADE 0.3 was released on February 15, 2005.
 * SLADE 0.4 was released on May 9, 2005.
 * SLADE 0.5 was released on May 30, 2005.
 * SLADE 0.6 was released on August 31, 2005.

SLADE 1

 * SLADE 1.01 was released on November 21, 2005. It is the first full release.
 * SLADE 1.02 was released on January 1, 2006.
 * SLADE 1.1 was released on February 6, 2006.
 * SLADE 1.11 was released on February 22, 2006.
 * SLADE 1.12 was released on March 14, 2006.
 * SLADE 1.13 was released on May 23, 2006.

SLADE 2

 * SLADE 2.0 beta version was released on June 6, 2007, but was abandoned afterwards.

SLADE 3

 * SLADE 3 beta 1 was released on January 29, 2010.
 * SLADE 3 beta 2 was released on March 2, 2010.
 * SLADE 3 beta 3 was released on March 30, 2010.
 * SLADE 3 beta 4 was released on April 6, 2010.
 * SLADE 3 beta 5 was released on May 17, 2010.
 * SLADE 3 beta 6 was released on August 20, 2010.
 * SLADE 3 beta 7 was released on October 20, 2010.
 * SLADE 3.0.0 was released on November 7, 2010. It is the first full release. It is a merging of SLADE and SLumpEd.
 * SLADE 3.0.1 was released on February 16, 2011.
 * SLADE 3.0.2 was released on July 25, 2011.
 * SLADE 3.1.0 was released on June, 2014, after over 3 years of development.
 * SLADE 3.1.1 was released on 28 February 2016.
 * SLADE 3.1.2 was released on 27 November 2018.
 * SLADE 3.1.3 was released on 8 December 2018.
 * SLADE 3.1.4 was released on 26 December 2018.
 * SLADE 3.1.5 was released on 7 May 2019.
 * SLADE 3.1.6 was released on 22 August 2019.
 * SLADE 3.1.7 was released on 30 October 2019.
 * SLADE 3.1.8 was released on 22 November 2019.
 * SLADE 3.1.9 was released on 17 February 2020.
 * SLADE 3.1.10 was released on 20 February 2020.
 * SLADE 3.1.11 was released on 4 March 2020.
 * SLADE 3.1.12 was released on 26 May 2020.
 * SLADE 3.1.13 was released on 1 June 2021.
 * SLADE 3.2.0 was released on 12 April 2022.
 * SLADE 3.2.1 was released on 13 May 2022.
 * SLADE 3.2.2 was released on 1 April 2023.
 * SLADE 3.2.3 was released on 31 May 2023.
 * SLADE 3.2.4 was released on 21 June 2023.

SLADE 3
Map editing is not finished yet, but UDMF and Doom64 EX are supported in addition to the Doom and Hexen map formats.
 * All SLumpEd features and more
 * Lump manipulation in WADs and ZIP (STORE and DEFLATE only at the moment)
 * Ability to open archives-within-archives
 * Ability to open many other game archive formats (Duke Nukem 3D GRP files, Blood RFF files, Shadowcaster DAT and LIB files, Quake PAK files, archives, etc.)
 * Playback for many audio formats, including:
 * MUS, MIDI, HMI, HMP, XMI, played through FluidSynth
 * Doom's sound format (only extant utility able of handling correctly the padding bytes)
 * Doom's PC speaker sound effects
 * Several simple PCM formats used in games contemporary to Doom (Blood, Duke Nukem 3D, Rise of the Triad, Wolfenstein 3D, etc.)
 * Most streamed formats through
 * Most common module formats through
 * Support for many graphic picture formats, including:
 * All those from the Doom Alphas and Beta
 * All ZDoom-specific formats (IMGZ, FON1, FON2)
 * The planar format used by the Hexen startup screen
 * PNG including the grAb and alPh chunks, and many other standard formats (BMP, JPG, PCX, TGA, etc.)
 * The formats used by Shadowcaster, Quake,, Duke Nukem 3D, Rise of the Triad, and more
 * Palette generation and modification
 * COLORMAP generation from palette
 * Support for editing TEXTUREx lumps, including the Alpha and Strife variants
 * Full support for ZDoom's
 * Support for editing the Boom lumps SWITCHES and ANIMATED, including the SMMU and ZDoom additions
 * Text editing of any lump
 * Hex viewing of any lump
 * Pixel editing of graphic lumps
 * A console
 * Support for Doom, Doom II, Heretic, Hexen, Strife, Doom 64, Chex Quest/3, and Urban Brawl games
 * Support for Boom, Eternity and ZDoom source port advanced features
 * DECORATE parser
 * Support for embedding a custom configuration in an archive as a "SLADECFG" lump
 * Colour configurations
 * 3D editing mode (including translucent textures)
 * Easy line and shape drawing
 * Saving map preview images suitable for
 * Scripting in Lua

Older versions
SLADE 1.13 or 2.00-beta have the following features:
 * Support for Doom, Doom II, Heretic and Hexen games
 * Support for Boom and ZDoom source port advanced features
 * DECORATE parser
 * Colour configurations
 * 3D editing mode (including slopes and translucent textures)
 * Easy line and rectangle drawing